given_when_then_unit_test 0.0.8
given_when_then_unit_test: ^0.0.8 copied to clipboard
A package to make Unit Test code more readable and well documented.
// ignore_for_file: public_member_api_docs
import 'package:given_when_then_unit_test/given_when_then_unit_test.dart';
import 'package:shouldly/shouldly.dart';
import 'package:test/test.dart';
class Calculator {
num _val = 0;
num get res => _val;
void add(num value) {
_val = _val + value;
}
void subtract(int value) {
_val = _val - value;
}
}
void main() {
group('calculator', () {
late Calculator calc;
setUp(() => calc = Calculator());
group('add 1', () {
setUp(() => calc.add(1));
test('result should be 1', () {
expect(calc.res, 1);
});
group('[and] substract 1', () {
setUp(() => calc.subtract(1));
test('res should be 0', () {
expect(calc.res, isZero);
});
});
});
});
// You can rewrite tests above with Given When Then + Shouldly as a common English sentence
given('calculator', () {
late Calculator calc;
before(() {
calc = Calculator();
});
when('add 1', () {
before(() => calc.add(1));
then('result should be 1', () {
calc.res.should.be(1);
});
and('subtract 1', () {
before(() => calc.subtract(1));
then('res should be 0', () {
calc.res.should.beZero();
});
});
});
});
}